the difference between one longliner and 96 boats putting equal number of hooks in the water is-
each of the 96 boats tends an average of 5.2 hooks and immediately deals with a hooked fish, be it rat, keeper, by-catch, whatever. Keeping or releasing as required. By catch mortality and mud darts kept to the minimum by the simple fact that the fish is dealt with immediately, not hours later.
the longliner sets 500 hooks, waits several hours while tending none of them, pulls up whatever is hooked, keeps the keepers and tosses, sorry, releases what it can not sell. Dead by catch, mud darts etc are left to their own devices.
Every fisherman has blood on his hands, sure, the trick is to keep it to a minimum, right? Longlining was permanently banned in the Bahamas 30 years ago.